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External Compression Therapy for Secondary Prevention of Lower-Limb Loss and Cardiovascular Mortality (ArtAssist)

4 listopada 2016 zaktualizowane przez: Temple University

External Compression Therapy for Secondary Prevention of Lower-Limb Loss and Cardiovascular Mortality in Underserved Philadelphia Patient Population: A Randomized Controlled Study

In this clinical research study the investigators will test the efficacy of an innovative, non-invasive methodology to reduce mortality and lower limb loss among high-risk medically-underserved patients with cardiovascular disease in North Philadelphia.

Patients with cardiovascular disease and recent lower limb amputation will be treated with an intermittent compression device on the remaining lower limb to prevent dual amputation.

The study hypothesis is that the study intervention will protect against further lower limb-loss/death and reduce cardiovascular mortality in these patients (one year effect against limb-loss/death).

This study may result in better secondary prevention strategies for disadvantaged urban populations as well as the general population.

Przegląd badań

Status

Nieznany

Interwencja / Leczenie

Szczegółowy opis

The purpose of this study is to evaluate whether a non-invasive intervention for 3 months with an intermittent compression device (ArtAssist®) in a high risk patient group reduces the risk of subsequent one-year limb-loss and/or death (e.g. one-year amputation-free survival and overall survival.) Survival after an amputation is markedly decreased due to generalized cardiovascular disease. The thirty-day mortality after amputation ranges from 6% to 16% depending on renal function. Two-year mortality after amputation is up to 40%.For dialysis patients, two year mortality was 58%.13 The five-year mortality after amputation in non-renal patients is 65%, while in dialysis patients five-year mortality is 83%. Patients who have undergone a major lower extremity amputation related to vascular disease are also at increased risk for losing their remaining lower extremity. The loss of the second lower extremity has a more profound impact on patients' ability to ambulate or function independently than the first amputation. Despite intensive initial rehabilitation, the use of prosthetics in bilateral amputees decreases rapidly over time. Contra-lateral amputations occur in up to 33%, after a mean of eight months. According to another study, 17% of diabetic initial amputees become bilateral amputees after a median time of less than one year for men and less than two years for women. According to a 2013 study, the majority of the subsequent contra-lateral amputations occur in the first year after the index amputation.

We hope to prove that that there is a role for IPC in vascular patients at high-risk for mortality and limb-loss with relatively low-cost compression therapy. We hope to learn more about which underserved patient categories are most likely to benefit from this and when to start the intervention.

Typ studiów

Interwencyjne

Zapisy (Oczekiwany)

120

Faza

  • Nie dotyczy

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Kontakt w sprawie studiów

Kopia zapasowa kontaktu do badania

Lokalizacje studiów

    • Pennsylvania
      • Philadelphia, Pennsylvania, Stany Zjednoczone, 19140
        • Rekrutacyjny
        • Temple University Hospital
        • Kontakt:
        • Kontakt:
          • Numer telefonu: 215-707-7143

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

21 lat i starsze (Dorosły, Starszy dorosły)

Akceptuje zdrowych ochotników

Nie

Płeć kwalifikująca się do nauki

Wszystko

Opis

Inclusion Criteria:

  • Male and Female ages ≥ 21years old
  • Able and willing to provide informed consent
  • Status post amputation of lower limb
  • IPC treatment can be initiated within 30 days post lower limb amputation
  • Ankle-brachial index in the remaining extremity of less than 0.80, or toe- brachial index less than 0 .60 (obtained within last 6 months)
  • Patients must be able to sit and able to perform the compression therapy independently
  • Intact renal function or if patient has chronic kidney disease a pre study Creatinine will be obtained. If the patient has acute renal failure or is a dialysis patient he/she is eligible, but will be separately randomized and analyzed because Creatinine is linked to survival.

    • Subjects status post healed minor (toe/metatarsal) amputations on treatment leg will be included.

Exclusion Criteria:

  • Patients who have no demonstrable peripheral artery disease by ankle-pressure and/or toe-pressure in the remaining limb (initial amputations were mostly precipitated by diabetic neuropathy, deformity, infection, or acute embolization. Amputations resulting from the late effects of trauma, burns, frostbite, etc. are also excluded.
  • Patients who are not able to consent due to their mental status, or who are not willing or able to perform the compression therapy in a sitting position
  • Contracted nursing-home patients with index amputations resulting from largely pressure-related tissue-loss decubitus
  • Patients with infected gangrene or osteomyelitis present in the contra-lateral extremity (which would need to be compressed) at the time of the index amputation
  • Patients with active dry gangrene on the leg that is to be compressed
  • Patients with congestive heart failure
  • Patients in which a deep venous thrombosis or pulmonary embolism is suspected
  • Patients who have undergone arterial compression therapy within 1 year prior to study
  • Bilateral amputation of lower extremity
  • Patients with an expected life-span less than 3 months
  • Patients who require intensive care are not eligible, until they can be transferred to a regular nursing floor
  • Patients in whom the remaining limb is non-functional, for example due to previous stroke

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

  • Główny cel: Leczenie
  • Przydział: Randomizowane
  • Model interwencyjny: Zadanie dla jednej grupy
  • Maskowanie: Poczwórny

Broń i interwencje

Grupa uczestników / Arm
Interwencja / Leczenie
Aktywny komparator: Art Assist Device
The ArtAssist© (model AA1000) device is made by ACI Medical located in San Marcos, CA (http://acimedical.com/) and is cleared per FDA under K942530.The study intervention will consist of one hour of IPC with the ArtAssist© device to the remaining leg, three times a day for a three month period. We will obtain the usage data from the device when the subject returns the device (the device has an internal device that stores the usage data) to evaluate subject compliance.
The study intervention will consist of one hour of IPC with the ArtAssist© device to the remaining leg, three times a day for a three month period. We will obtain the usage data from the device when the subject returns the device (the device has an internal device that stores the usage data) to evaluate subject compliance.
Inne nazwy:
  • The ArtAssist© (model AA1000)
Pozorny komparator: Sham Device
Sham devices look identical to the actual ArtAssist© devices, but provide low-pressure and differ only in number-coded tubing. The study "sham intervention" will consist of one hour of IPC with the sham ArtAssist© device to the remaining leg, three times a day for a three month period. We will obtain the usage data from the device when the subject returns the device (the sham device has an internal device that stores the usage data) to evaluate subject compliance.
The study intervention will consist of one hour of IPC with the ArtAssist© device to the remaining leg, three times a day for a three month period. We will obtain the usage data from the device when the subject returns the device (the device has an internal device that stores the usage data) to evaluate subject compliance.
Inne nazwy:
  • The ArtAssist© (model AA1000)

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku
Ramy czasowe
Amputation free survival
Ramy czasowe: 1 year
1 year

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Śledczy

  • Główny śledczy: Paul van Bemmelen, MD, PhD, Temple University

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów

1 października 2013

Zakończenie podstawowe (Oczekiwany)

1 grudnia 2018

Ukończenie studiów (Oczekiwany)

1 lutego 2019

Daty rejestracji na studia

Pierwszy przesłany

31 stycznia 2014

Pierwszy przesłany, który spełnia kryteria kontroli jakości

3 lutego 2014

Pierwszy wysłany (Oszacować)

4 lutego 2014

Aktualizacje rekordów badań

Ostatnia wysłana aktualizacja (Oszacować)

8 listopada 2016

Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości

4 listopada 2016

Ostatnia weryfikacja

1 października 2016

Więcej informacji

Terminy związane z tym badaniem

Dodatkowe istotne warunki MeSH

Inne numery identyfikacyjne badania

  • PVB012013

Te informacje zostały pobrane bezpośrednio ze strony internetowej clinicaltrials.gov bez żadnych zmian. Jeśli chcesz zmienić, usunąć lub zaktualizować dane swojego badania, skontaktuj się z register@clinicaltrials.gov. Gdy tylko zmiana zostanie wprowadzona na stronie clinicaltrials.gov, zostanie ona automatycznie zaktualizowana również na naszej stronie internetowej .

Badania kliniczne na ArtAssist© Device

3
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